> -----Original Message----- > From: Andrew Rybchenko [mailto:arybche...@solarflare.com] > Sent: Wednesday, October 9, 2019 3:55 PM > To: Su, Simei <simei...@intel.com>; Zhang, Qi Z <qi.z.zh...@intel.com>; Ye, > Xiaolong <xiaolong...@intel.com>; Yigit, Ferruh <ferruh.yi...@intel.com> > Cc: dev@dpdk.org > Subject: Re: [dpdk-dev] [PATCH v11 2/3] ethdev: extend RSS offload types > > On 10/9/19 10:42 AM, Su, Simei wrote: > > Hi, Andrew > > > >> -----Original Message----- > >> From: Andrew Rybchenko [mailto:arybche...@solarflare.com] > >> Sent: Wednesday, October 9, 2019 3:18 PM > >> To: Su, Simei <simei...@intel.com>; Zhang, Qi Z > >> <qi.z.zh...@intel.com>; Ye, Xiaolong <xiaolong...@intel.com>; Yigit, > >> Ferruh <ferruh.yi...@intel.com> > >> Cc: dev@dpdk.org > >> Subject: Re: [dpdk-dev] [PATCH v11 2/3] ethdev: extend RSS offload > >> types > >> > >> On 10/9/19 9:57 AM, Simei Su wrote: > >>> This patch reserves several bits as input set selection from the > >>> high end of the 64 bits. It is combined with exisiting ETH_RSS_* to > >>> represent RSS types. > >>> > >>> Signed-off-by: Simei Su <simei...@intel.com> > >>> Reviewed-by: Qi Zhang <qi.z.zh...@intel.com> > >>> Acked-by: Ori Kam <or...@mellanox.com> > > [snip] > > >>> a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h > >>> index 7722f70..ef59ed5 100644 > >>> --- a/lib/librte_ethdev/rte_ethdev.h > >>> +++ b/lib/librte_ethdev/rte_ethdev.h > >>> @@ -4034,6 +4048,27 @@ int > rte_eth_dev_adjust_nb_rx_tx_desc(uint16_t port_id, > >>> void * > >>> rte_eth_dev_get_sec_ctx(uint16_t port_id); > >>> > >>> +/** > >>> + * If SRC_ONLY and DST_ONLY of the same level are used > >>> + * simultaneously, it is the same case as none of them > >>> + * are added. > >>> + * > >>> + * @param rss_hf > >>> + * RSS types with SRC/DST_ONLY. > >>> + * @return > >>> + * RSS types. > >>> + */ > >>> +static inline uint64_t > >>> +strip_out_src_dst_only(uint64_t rss_hf) > >> Inline function in public header without corresponding prefix is a bad > >> idea. > >> Please, move it to C file and I think that inline should be removed. > >> Let the compiler do its job. > > Because I also need to check simultaneous use of SRC/DST_ONLY in > PMD driver. > > In order to call strip_out_src_dst_only() function directly in driver, > > I put it in header file and declare it as inline function. > > At bare minimum it should have rte_eth_dev_ prefix. > Also from the name it is not clear that it is about RSS etc. > Not sure why you need it in driver as well, hopefully I'll see.
The consideration is when handle rte_flow_action_rss, we still need to strip it out since this route will bypass the dev_configure or rss_update So there are two options 1, strip out at rte_flow_create , this relief all the PMDs, but code looks a little bit strange. 2. handled by PMD themselves Anyway both of the cases need this helper function be exposed by rte_ethdev.h, maybe we can define a macro named RTE_ETH_RSS_HF_REFINE? Regards Qi > > Andrew.
